Illinois Route 15
Encyclopedia
Illinois Route 3
Illinois Route 3 is a major north–south arterial state highway in southwestern Illinois. It has its southern terminus at Cairo Junction at the intersection of Interstate 57 and U.S. Route 51, and its northern terminus in Grafton at Illinois Route 100...
, U.S. Route 40
U.S. Route 40
U.S. Route 40 is an east–west United States highway. As with most routes whose numbers end in a zero, U.S. 40 once traversed the entire United States. It is one of the original 1920s U.S. Highways, and its first termini were San Francisco, California, and Atlantic City, New Jersey...
, I-55
Interstate 55
Interstate 55 is an Interstate Highway in the central United States. Its odd number indicates that it is a north–south Interstate Highway. I-55 goes from LaPlace, Louisiana at Interstate 10 to Chicago at U.S. Route 41 , at McCormick Place. A common nickname for the highway is "double...
, I-64
Interstate 64
Interstate 64 is an Interstate Highway in the Midwestern and Southeastern United States. Its western terminus is at I-70, U.S. 40, and U.S. 61 in Wentzville, Missouri. Its eastern terminus is at an interchange with I-264 and I-664 at Bowers Hill in Chesapeake, Virginia. As I-64 is concurrent with...
, and I-70
Interstate 70
Interstate 70 is an Interstate Highway in the United States that runs from Interstate 15 near Cove Fort, Utah, to a Park and Ride near Baltimore, Maryland. It was the first Interstate Highway project in the United States. I-70 approximately traces the path of U.S. Route 40 east of the Rocky...
and its eastern terminus at Wabash River
Wabash River
The Wabash River is a river in the Midwestern United States that flows southwest from northwest Ohio near Fort Recovery across northern Indiana to southern Illinois, where it forms the Illinois-Indiana border before draining into the Ohio River, of which it is the largest northern tributary...
at the Illinois/Indiana Border where it meets Indiana 64. This is a distance of 149.64 miles (240.82 km).
History
West of Mt. Vernon, IL 15 was part of US 460. Until the 1960s, IL 15 went on the IL 160Illinois Route 160
Illinois Route 160 is a north–south highway in southwestern Illinois. Its southern terminus is at Illinois Route 15 south of Addieville, and its northern terminus is at Illinois Route 140 east of Alhambra. This is a distance of .- Route description :...
corridor from Addieville to Okawville, then west on the present IL 177
Illinois Route 177
Illinois Route 177 is an east–west state road in southern Illinois. It runs from Illinois Route 159 in Belleville to U.S. Route 51 in Irvington. This is a distance of .- Route description :...
corridor to Belleville. The section from Nashville to St. Libory was once IL 110, but this was back in the 1940s before US 460 was signed.
The current route was determined in 1967. US 460 was truncated in 1974.